http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
Yasui, Takahiro,Tozawa, Keiichi,Ando, Ryosuke,Hamakawa, Takashi,Iwatsuki, Shoichiro,Taguchi, Kazumi,Kobayashi, Daichi,Naiki, Taku,Mizuno, Kentaro,Okada, Atsushi,Umemoto, Yukihiro,Kawai, Noriyasu,Sasak Asian Pacific Journal of Cancer Prevention 2015 Asian Pacific journal of cancer prevention Vol.16 No.15
Background: To explore the safety, efficacy, and oncological outcome of 3-port laparoscopic radical cystectomy (LRC) compared to open radical cystectomy (ORC) in patients older than 75 years. Materials and Methods: From June 2010 to July 2014, we analyzed 16 radical cystectomies in patients older than 75 years (LRC group=8; ORC group=8). Demographic parameters, operative variables, and perioperative outcome in the 2 groups were retrospectively collected, analyzed, and compared. Results: Patients in both groups had comparable preoperative characteristics. A significantly longer operating time (476 vs. 303 min, P=0.0002) and less estimated blood loss (627 vs. 2,106 mL, P=0.021) were observed in the LRC group compared to the ORC group. Infection and ileus were the most common early complications after surgery. Patients who underwent ORC suffered from more postoperative infection (22.2% vs. 0.0%, P=0.054) and ileus (25.0% vs. 12.5%, P=0.521) than the LRC group, but the difference was not significant. Conclusions: Judging from this initial trial, 3-port LRC can be safely carried out in elderly patients. We suggest 3-port LRC as the primary intervention to treat muscle-invasive or high-risk nonmuscle-invasive bladder cancer in elderly patients with an otherwise relatively long life expectancy.
Trigeminal Neurinomas : Report of 8 Cases with special Reference to Operative Approach
Yasui, Toshihiro,Hakuba, Akira,Kim, Soo Han,Suzuki, Toshihisa,Nishimura, Shuro 대한신경외과학회 1989 Journal of Korean neurosurgical society Vol.18 No.1
저자들은 최근 13년동안 총 8예의 삼차신경초종 환자에서 가능한한 1회의 수술에 의한 종양전적출의 원칙아래 수술을 시행하고 다음과 같은 결과를 얻었다. 남녀의 비는 3 : 5였고 연령 분포는 25세에서 56세까지 다양하였다. 종양의 위치 별 분포는 주로 중두개와 또는 후두개와에 국한된 경우가 각각 2예, 중·후두개와 양측에 걸쳐 장구형 모양을 정하고 있었던 경우가 4예였다. 주 증상으로는 안면부 동통과 청력장해가 가장 많았고 그밖에 다양한 증상이 출현하였다. 수술 접근법은 종양의 위치에 따라서 transpetrosal-transtentorial 혹은 orbitozygomatic-infratemporal approach 방법을 사용하였으며 모든예에서 종양을 전적출하였다. 1예에서만 수술 5년후에 종양이 재발하여 재수술을 시행하였으며 수술후 사망한 예는 없었으나 대부분의 예에서 수술중 삼차신경 분지의 손상으로 발생되는 부분적인 삼차신경 기능장애는 불가피하였다. 술후 결과는 3예에서 우수하였고 4예에서 양호했으며 1예에서는 수술전에 비해 악화되지 않는 좋은 결과를 보였다. The authors have treated eight cases of trigeminal neurinomas for the past thirteen years. We have been treating these tumors in accordance with the principle of radical resection through one-staged operation. Three were male and five were female. The age ranged from 25 to 56 years with the mean age of 41.5 years. One was a case of von Recklinghausen's disease, Topographically, the tumors were mainly located within the middle fossa in two cases, within the posterior fossa in two, and extended both supra- and infratentorially in four cases. Facial pain and hearing disturbance were the main symptoms and various other symptoms such as focal seizure, hemiparesis, gait disturbance, symptoms of increased intracrainal pressure and visual disturbance were also noted. Surgical operations were performed in all cases. As a surgical approach, either transpetrosal-transtentorial or orbitozygomatic-infratemporal route was employed. The choice of the better approach depends on the topography of the tumor. Total removal was performed in all cases. Only one case, which was an early one in this series required second operation to remove the tumor completely. In one case, the tumor recurred five years after the operation. There has been no operative mortality, but the injury or permanent damage to the trigeminal branches was inevitable in many cases. Surgical results were excellent in three, good in four, and fair in one case.
The Influence of Powder Size on Mechanical Properties of Small MIM Parts
Yasui Noriyuki,Satomi Hiroshi,Fujiwara Hiroshi,Ameyama Kei,Kankawa Yoshimitsu 한국분말야금학회 2006 한국분말야금학회 학술대회논문집 Vol.2006 No.1
The relationship between the powder particle size change and a mechanical property of the Metal Injection Molding (MIM) product was examined in detail. The XRD results indicate that the diffraction peaks of BCC appeared in compacts of powder particle size of 4 to as well as the bulk SUS630. However, the diffraction peaks from both BCC and FCC were observed in the compact with powder size less than . TEM observation revealed that the powder with those BCC/FCC two phase structure have a finely dispersed precipitates. Because the Si is ferrite stabilizing element, decrease of Si composition in the matrix phase by the precipitation resulted in formation of the retained austenite. Therefore, controlling the elements such as Si as well as oxygen decrease is very important to obtain a normal microstructure in ultra-fine powder (<3μm) injection molding.
Arranged Stories Reflecting the Thinking of Students in Engineering Ethics Case Study Method
Yasui, Mitsukuni Korean Society for Engineering Education 2014 공학교육연구 Vol.17 No.5
Engineering Ethics is a fundamental and essential subject and the understanding of ethics is of great importance for students in engineering courses and professional engineers. Most courses would consist of ethical tests, decision making opportunities, case studies, case methods, and group discussion. It is important to consider each case carefully, so we offer a number of hypothetical short stories to students as case methods that they cover in detail. We check the behavior decisions of students as they read the hypothetical short stories. In this study, the short story was about 200 words in length. This paper shows how, with the addition of minor changes to the text, some students changed their behavioral decisions. For example, with the addition of "if you take financial liability for the losses," some thought that they would not want to carry the debt. Other cases showed how some students disliked the majority rule. The paper shows that this arranged hypothetical short story method can often guide student's decision-making process, and can result in decreased undesirable decisions.